"He’s improved, but he still feels it, although on a daily basis it decreases," Cashman said. "So that’s good, but it’s not good that he’s still feeling it at this stage. So it’s just day-by-day, week-by-week and we’ll adjust accordingly. It’s too early to call."
Tanaka went on the DL on July 9 with right elbow inflammation and a partially torn ulnar collateral ligament. He won't try to throw for two more weeks, manager Joe Girardi said.
Texas has not announced Tepesch's replacement.
"I’m not going to discuss Jon’s situation out of respect for both Jon and (general manager) Ben (Cherington) other than to say that both sides have put further discussion off until after the season. It’s clear that both Jon and our organization would like to see Jon back next year if possible."
Lester, whose deal expires at season's end, said earlier he didn't want his contract talks to become a distraction for the team. He's 10-7 with a 2.50 ERA in 20 starts.
Adcock got off to a late start this season while recovering from surgery, but had a 2.76 ERA in 16 1/3 innings at Triple-A Round Rock prior to his call-up.